按规律填空:1/1·1/2·2/3·2/4( )·( )·( )·( )

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按规律填空:1/1·1/2·2/3·2/4( )·( )·( )·( )
x){by}O~r= m77:HDӡ~O86IE2JΆªXX 67Gb[@\T\gu 1@CI7H

按规律填空:1/1·1/2·2/3·2/4( )·( )·( )·( )
按规律填空:1/1·1/2·2/3·2/4( )·( )·( )·( )

按规律填空:1/1·1/2·2/3·2/4( )·( )·( )·( )
1/1·1/2·2/3·2/4(3/5 )·(3/6 )·(4/7 )·(4/8 )

1/1·1/2·2/3·2/4( 3/5)·(3/6 )·(4/7 )·(4/8 )